Andaluces 4-6-2 Locomotives in Spain
Class Details by Steve Llanso of Sweat House Media
Class 3.301/231-2001 (Locobase 3361)
Data from [
], the web site of the Spanish National Railway and [] (28 April 2003). See also Via Libre's continuing series of profiles
According to the Via Libre entry, the upcoming Spanish-American exposition being held in Seville led the Spanish government to demand that the Andaluces buy some new passenger engines to bring visitors from the port of Cadiz. The relatively level profile led to the choice of a Pacific with taller drivers for higher speeds, although Via Libre notes that the three Norte engines had still larger wheels.
The builder was Spanish, but the plans were those of the German Maffei company. This explains the very Germanic look, says Via Libre.
The class remained in service in the Seville area until 1968.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 3.301/231-2001 |
| Locobase ID | 3361 |
| Railroad | Andaluces |
| Country | Spain |
| Whyte | 4-6-2 |
| Number in Class | 10 |
| Road Numbers | 3.301-3.310/231-2001 a 231-2011 |
| Gauge | 5'6" |
| Number Built | 10 |
| Builder | Babcock & Wilcox |
| Year | 1930 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 13.45 / 4.10 |
| Engine Wheelbase (ft / m) | 36.75 / 11.20 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.37 |
| Overall Wheelbase (engine & tender) (ft / m) | 62.01 / 18.90 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 37,622 / 17,065 |
| Weight on Drivers (lbs / kg) | 108,412 / 49,175 |
| Engine Weight (lbs / kg) | 187,194 / 84,910 |
| Tender Loaded Weight (lbs / kg) | 114,067 / 51,740 |
| Total Engine and Tender Weight (lbs / kg) | 301,261 / 136,650 |
| Tender Water Capacity (gals / ML) | 5201 / 19.70 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.60 / 6 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 60 / 30 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 74.80 / 1900 |
| Boiler Pressure (psi / kPa) | 227.70 / 1570 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20.51" x 25.98" / 521x660 |
| Tractive Effort (lbs / kg) | 28,278 / 12826.70 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.83 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 154 - 1.969" / 50 |
| Flues (number - dia) (in / mm) | 30 - 5.236" / 133 |
| Flue/Tube length (ft / m) | 17.39 / 5.30 |
| Firebox Area (sq ft / m2) | 159.85 / 14.85 |
| Grate Area (sq ft / m2) | 43.06 / 4 |
| Evaporative Heating Surface (sq ft / m2) | 2073 / 192.59 |
| Superheating Surface (sq ft / m2) | 702 / 65.22 |
| Combined Heating Surface (sq ft / m2) | 2775 / 257.81 |
| Evaporative Heating Surface/Cylinder Volume | 208.67 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 9805 |
| Same as above plus superheater percentage | 12,256 |
| Same as above but substitute firebox area for grate area | 45,497 |
| Power L1 | 26,260 |
| Power MT | 1602.04 |